Excavating machine



Aug. 30, 1932 H. HQTALBoYs EXCAVATING MACHINE Filed Feb. l2. 1930 4 Sheets-Sheet 1 In Wmof l Qq l f l nl ...ffwwv WAM/- mm1 ...A/.HMI J. www E N m a w r rm wb W Aug. 30,Y 1932. H. H. TALBoYs EXGAVATING MAQHINE Filed- Feb. 12', 1930 4 Sheets-Sheet 2 f??? 176722" a ay; y

Aug.- 30, 1932; H. H. TALBoYs EXCAVATING MACHINE Filed Feb. 12, 1930 4 Sheets-Sheet 3 Aug, 3o, 1932.*

HQ H. TALBoYs 1,874,831

EXCAVATING MACHINE Fil'ed Feb. 12. 1950- 4 Sheets-Sheet 4 Maffay/@yx- Patented Aug. 30, Y1932 UNITED STATES PATENT A'ori-Ica HENRY H. TALBoYs, or MILWAUKEE, WIsooNsIN, AssIGNon'fro Nonnnnas MANUFAC- TUBING COMPANY, OIFv MILWAUKEE, VVIISCONSIN', A CORPORATION OF WISCONSIN ExoAvATING MACHINE Application mea February 12, 1930. serial No. 427,736.4

My invention relates to supporting .and conveying means for excavating or lifting machinery and has for one object the provision of supporting means for` a shovel.

l One object is the` provision of aground engaging abutment adapted to be associated with a track laying tractor and to project forwardly thereof, to give additional support for machinery mounted upon said tractor. I l have illustrated my invention as applied to such a tractor in associationwith an excavating shovel, the excavating member of which projects forwardly of the end of a. track lay- Aing or crawler tractor, a ground engaging means or abutment beingprovided to extend adjacent the point of actual excavation of a shovel member. Another object of my invention, is the provision of such an abutment or ground engaging member andV means for 20 readily liftingv it into inoperative position, A

to `permit readymovement of the tractor. Another object is the provision of adjusting means for the endless track of a track laying tractor. Other objects will appear froml time to time in the course of the `specification and claims. Y

I illustrate my invention more or less diagrammatically inV the accompanyingy drawings, wherein- Figure 1 is a side elevation;`

Figure 2 is a top plan view, with co plates omitted; Y f

Figure 3 is a section along the line 3-3 of Figure 2;

Figure 4 is a section on the line H of Figure l; j'

Figure 5 is a section onthe line 5'--5V of Figure 4; Y j

Figure 6 is a detail of the power plant and rear sprocket unit;

Figure 7 is a section on the line 7-7 of Figurel; and

Figure 8 is a section on the line 8 8 of FigureQ. j

Like parts are indicated by like symbols throughout the specification and claims.V Referring first to Figure 1,` I illustrate a general assembly in which a track laying tractor isl associated .with `'an excavatimg shovel. In the remaining yviews the shovel structure, 4.which is shown in dottedvlinelzin Figure yl is omitted,rit being understoodthat .the detailsof the shovel itself form no part of thepresentinvention, and .that a variety ofexcavating and lifting mechanisms might be employed upon the supporting structure herein shown.

Referring to the drawings and for example'.

to Figures' l to et, A indicates a general base plate structure; *Mounted upon the base A is the-main turntable casting generally in-l dicated'as A1 which includes a base portion A2 which may be bolted as atA3 .to the base plate A. Upon this turn table the hoisting ,c

or bucket structure shown in dottedline-in Figure 1 maybejmounted in any suitable manner, the details thereof forming` no part of the present invention ,and being not indiv cated herein except fonthe circularjflange-A ofthe turntable proper. Extending laterally fromthe base A? are bearingsupports A5 in eachof whichis .mounted a shaft A".

-Mounted on each such shaft A6 isa double ens` Y rollers Bthaving shafts B5 mounted in any v suitable bearings B8; associated with or 'welded to the bottom of the plate A, whereby the plate A and the structure mounted thereor track. 1 V

The end of the track oppositefthe sprockets A7 passes about similar sprockets O. Each such sprocket O is mountedvupon a shaft C1.

One end of saidv shaft extends into and is journalled vin the Awall of a supplemetnal drive housing generally indicated, as C2. The other end lis supported by the'bracket or'split collar O3 which penetrates beneath the indi-V vidual sprocket members and 'about their con-v upon may be supported upon the endless belt necting hub G4 and forms a part of the housing unit C2. The details of thehousing or drive unit are shown for example in Figures 3, 4t, 5 and 6. Within the housing C2 and upon the shaft C1is the gear C5 in mesh with the pinion C6 associated with a gear VC7 which in turn is in mesh with the drive pinion G8 which is 'mounted on the drive shaft C9 'Y actuated by any suitable "power plantgener-` ally indicated as C10. It will be understood that the power plant may be driven by compressed air but the details of the compressed air drive do not form part of the presentv invention and are not'indicated. -Referring for example to Figures 2, V6 and 7, a longitudinal adjustment of lthe'drive housing above described may be ,effectedy in relation to the base plate A. For example the base plate A` may be slotted as at D, D, in opposition to the holes D1 D1 ing-the bottom of the member C2. The memberC2 in turn be slotted as at D2 D2. D3 D3 generally indicate bolts 7 passing thro-ugh these variousslots, each; such bolt being indicated as shown with a nuty D1 and a washer D5, whereby the Vparts may be locked at anyy desired adjustment. V.Referring in detail to FigureV 7, D? indicates a blockor projection mounted upon or welded upon the base plate A to serve as an adjusting abutment.' Interposed between it and the raised end portionD7 of the housing C2 may be any desired number of shims D8. These shims are apertured as at D9, in 'line with an faperture D10 in a blockDG, to receive the po@V sitioning bolt D11. Depending upon the de-` sired adjustment the shims may be shifted Y from ,one side vto another of a block D1. Ity will bel understood that by'longitudinal lad justment ofthe drive assembly the stretch ofthe belt or track may befcompensatedfor Y gaglngroller D14 which is in' addition to the other rollers o'r supporting members B4.' In

order to guide the gear assembly in its 'lon-V gitudinal 'adjustmentI Valso provide a keyway lD15 vand the key D16, 'whereby'plateral V,displacement of the driving assembly is prevented. Each gear box is provided with a removable coverplate D17; I also provide a general enclosure which includes an end plate E welded to the endof the base plate A, and two forward Y or intermediate plates E1 E2.l

VMounted 'upon Vthese plates is the general 'cover plate VE3 and an additional cover .plate-E1. Y G1 generally-indicates a ground eng'gfaging plate or yadjustmentwhich includes a 'forward ground engaging portion proper G1 the upper face of which is bevelled as at G2. G3 is an intermediate flat portion and G4c indicate downwardly projecting supporting webs lying in ther general plane of the lowerV surface G1. Rearwardly extending from the plate are extensions G5 which may be'boltedl to arms G6 which arms are pivoted at their opposite ends for rotation about the shaftA, whereby the abutmentl or ground engaging plate is mounted upon and pivoted to the plate A2 which in turn is bolted to the base plate A. The rear edge of the plate G is provided with two pairs of rearwardly extending lugs through which pass the pins Gato which are Vpivoted the links G9 the upper ends of which are pivoted as at G10 to the cross heads G11, which cross heads slide ink guides G12, as shown in yFigure 8. It will Abe understood that these guides G12 areV part of the casting A1.` Controlling `the movement of the cross heads along the guides G12 are the longitudinally extending tie rods G13 the opposite ends of which are secured to the yoke G14. `The yokeV G12, in turn, has longitudinal'Y move-n ment imparted to it, as by rotation ofthe worm G15. This worm is journalledintothe plate E1, and, at its Vopposite end, in the casting G16, as Yshown in rFiguresV 2 kand The-worm may be rotated, 'as throughk thel gearsG, G12, the shaft G12, and the manual crank G20.

ing rotation to the vworm G11,.for example a ratchet might'be employed. Note that the yoke is housed beneath the coverI vplate E and between the upstanding plates E1 and E2, Ythel ends of which are connected asat E20,.to Vprovide a relatively complete housing struc` ture.

Y It will be realized thatiwhereas have de#V K A manual crank-is indicated but f i it will be understood that anyother suitable driving means may-be em'ployedgforimpart-V 10-0 1 scribedv and shown apracticaland operative device, ,nevertheless` many changes might'be made in thek size, shape, number and disposition of parts without departing fromthe Lspirit of my invention.A I therefore wish my description and drawings to be taken as ina broad 'sense Y Yillustrative and diagrammatic rather than'as limiting me to my specific showing.

- The use and operation of my invention are as follows: Y Y f 1 -V g Y I illustrate my invention as applied to an excavatingshovel whichl is shown as mounted Y upon a crawler or track laying base.V In e'x cavating work in which 4arshovel vis' employed, the base must underlie the shovel structure, but itis preferable that :the shovel or excavating structure be positioned at one end of the base. lIn the type of shovel herein shown such'position is necessary for the proper op- Y eration of the shovehjsince Aotherwise the upwardlyextendingfportion-{of the base wouldinterfere with the proper functioningof the shovel. On the other hand, such position ofV the shovel in practice tends to tilt the entire structure forwardly or to tilt the base forwardly and to interfere with the solid support of the shovel. I therefore provide what is in effect aforward 'extension of the base, which, however, is of such height as not to interfere with the normal operation of the shovel. This 'ground engaging member or extension shoe` or abutment extends forwardly substantially beyond the front aXle of the endless track, the center ofA support of the shovel being over said front` axle.` ASince the shovel is digging down under the ground it is necessary that the ground engaging abutment be flush with the ground,rwhen it is supportis being forwardly moved, Aof course theshovel may be positioned at another position than thatV in' which "it is shownin Figure 1..' f

In, the use of my device I provide a very. simple control means for the extensionshoe, namely the yoke'G14 controlled by 'lthevworm G15, Assuming that this yoke is inf the full line'position in which it is shown in Figures 2 and 3, a rotation of the worm G15 will move the yoke to the dotted line position of Figure 3. As it moves it draws up on the tension or tie rods G13 which, in turn, move'the cross heads G'11 rearwardly along' the guides G12. As these cross heads move to the rear,

, they draw up upon the plate G, through the links G9, and the plate or extension shoe takes the dotted line position in which it is shown in Figure 3. A reverse rotation of the worm returns it to ground enga-ging position.. The worm serves to lock the cross heads in forward position, and the vertical or practically vertical position of the links G9 prevents the eX- ertion of any force upon the cross heads which would tend to thrust them rearwardly. It will be seen, as in Figures l and 3, that when the bottom of the shoe is flush with the bottom of the crawler, the links are practically vertical, and may be made absolutely vertical if desired. The thrust is therefore upwardly against the upper flange of the guides G12 which are formed of suflicient thickness and housing or assembly having its ownk motor and "ou gear reduction, the whole being slidable as a unit` on the frame. Y WhileIhave notv gone` into detail with the motors' itfwill be under-4 stood that I prefer to provide individual throttley or 'control means for theindividual motors,.whereby theV operator may move the device `forward `by unitary operation of both motors, may turn the device by operating one motor alone orby operating the two motors in opposite direction. Y 4

Since the length of the crawler chain-may vary, due to wear, and due to'repairor replacement of individual links orof the chain as a whole,I make the individual drive and gear reduction assemblies' adjustable' along the base plate A. In'making this adjustment I provide the fixed blocks Dfi/upon 'the plate A and iiiterpose any desired number of shims D8 betweentlie blocks DG .and the assembly'or housing. C2. y

I Claim; .y

l. In a movable and the like, means for moving'said support across a supporting surface, 'a supporting abutment member movably mounted upon said support and adapted to 'engage said' supporting surface, and means for lraising it above said supporting surface, including an support for machinery i element longitudinally movable upon, the

' support, and. alink, one end of which isinv pivotal relation with said4 longitudinal element and the other'withf-,the abutinentrmei'n-l bei".

1 2. Ina movable lsupport `for machinery and'V the like, -a supporting abutment pivoted to onefend'of` said support 'andmeans for raising' fandlowering it', including a'cross head mounted for horizontal movement upon' the support, means 'for 'impartingv 'horizontal movement thereto and a linkconnectionpivl ot'ally interposed between said cross head and v the supporting abutment memlzier.` l

3. 4The structure of claim 2 characterized by the provision' of a worm and4 means for rotating i`t,`a nut thereupon, and a-connectio'n between said nut and said cross head adapted',

iid

in" response to 'movement of sai'clnut along said worin, to impart movement to said cross' head.-

' 4, In a movable support for machinery and u the like, means for `movingsaid'support across a supporting surface,1an endlesstrack,` a rotating memberabout whichsaid track passes, a'supporting abutment member pivoted concentrically withV saidY rotatablemember, and adapted to engage said` supporting surface, and means forraising it above said supporting surface, `including aV member guided 'for movement in'relatio'n to 'said support," along a path transverselin relation to said axis of ro-` tation and av compression connection .between Vsaid member and the supporting abutment member.'I 5 i 5'. In a'movablesuppo-rtformachinery'and the like, means for moving said support across a supportingsuraCe, endless tracksp'osi tionedalong o-ppositesides of said support,

, rotary members about which said tracks pass,

and a vsupporting abutment member movably vmounted upon said lsupportv between said tracks and pivoted concentrically with said pivoted members, andmeans :tor raising it 'abovecsaid supporting surface, including Aa Vmember guided for movement in `relation to said support along a path transverse ,in rela-V to the axis of rotation of the abutment member, and an actuating connectionbetween it and the. abutment member. Y Y 7. In a movable support for machinery I and the like, a frame structure, endless supy, tween the cross-headk 'and the abutment v porting tracks associated with said structure and rotatable Y members, pivoted to` said structure, about rwhich said tracks pass, a supporting abutment member pivoted concentricallywith one setoi said p ivotedmemT bers and -means for moving it into andout of the general effective supportinggplane of said tracks,'including 'a cross-head guided for longitudinal horizontal movement along theframe structure at a level above the'axis of', rotation ofV the' supporting abutment member," andan actuating connection bemember..V f *c l 8. In a movable support for v,machinery and the like, a body, endless conveyor tracks V,upon said body and' means for actuating them, pulleys at each end of said tracks,

about which said tracks pass, a supporting abutment member pivoted to one end of said extension'from the ground engaging portion to the axis of rotation of the abutment.

9. In a movable 4support for machinery and the like, a body, endless conveyor tracks upon said body and means vfor actuating them, pulleys at each end of said tracks,

about which said tracks pass, va supporting y Y abutment member pivoted to one end of said movable support Land extending substan-Y tially forwardly therefrom, said abutment member being pivotedgenerally concentrically with the pulleys at one turn ofthe endless conveyor tracks, said abutment mein-A ber including a lower ground engaging bearing face aligned, when in supporting posi-l tion, with the plane ofthe lowerl bights of the tracks and connecting means between the aok supporting abutment membergand the body p adapted, when the supporting member is in ground engaging position, to hold it against unintended movement 1n relation to kthe body, `and means for actuating said con-v necting means whereby toA rotate the abutp ment member about its: pivot,said abutment member includingfa rearward and upward extension from the ground* engaging `portion to the axis ofrotation of the abutment,van d a support for the machinery to lbe supported, including a turn-table overlying the axis of rotation of the pulley,and yabutment `inembenand positioned closely adjacent the end of the body to whichtlie abutment member Y is pivoted. t

Signed at Milwaukee .county of *Milwau-k kee and State of Wisconsimrthisth day 0f January 1930. f v

HENRY 'rALBors movable support and extending ns ubstan` i tially orwardlyvtherefrom, said abutment member being pivoted generally concentrically Vwith thepulleys'atone turn of theY endless conveyor tracks, said abutment member including 'ai lower ground engaging bearing vkrace aligned,` when l in supporting position, with the plane of the lower bights of the'tracks and connecting means between the supporting abutmentfmember and the body adapted, when. Vthe supporting member is Yiii-ground engaging position, to hold it against unintendedpmovement in. relationy to the body, and means for actuating said conci g5 `necting means whereby to rotate the abutment member about its pivot, said abutment member-including Va rearward and upward 

